On what basis can anyone say it was a mistake?
Lets assume a hypothetical scenario, where we haven't announced OGS as our permanent manager. End of year meeting to decide who our permanent manager should be. OGS is obviously in the running and his record as our manager is pulled up.
PL:
3rd in the table since he came in. 2 points behind Pool and 1 behind City (who have played a game less), who arguably among top 3 sides in Europe right now in terms of talent and depth
FA Cup:
QF and we beat Arsenal away and Chelsea at the Bridge after 8(?) years, results that we weren't expecting to be honest.
CL:
When the draw came out in December, Jose was our manager and PSG was given a walkover as per most experts. We were the the team everyone wanted to play against, some favoured us over the likes of Schalke, Roma, Porto and Ajax as well. What followed vs PSG is the stuff people will talk for years to come. No one can say we weren't deserving, PSG simply didn't have a lot of shots over the 2 legs- it wasn't that we progressed due to a Dave masterclass, but because of grit and determination- something we haven't seen very often from a Manchester United side in post-SAF era. Add to that we had a considerable number of injuries as well in the 2nd leg.
Then there will be concerns thrown about whether we've been lucky.
But have we? We won a couple of games where we were lucky like the one vs Watford, WHU and Spurs, but then we lost vs Arsenal, Wolves and drew Burnley as well. Hell, if we compare our performances vs xG and xGA, we've scored roughly same number of goals as expected from the shots we've taken (actually we've scored slightly less (0.98 goals less)) and conceded around 2 goals less than we should have.
Then we come to the performances in raw numbers: As per xG stats, we should have scored 34.98 goals in these 17 games which translates to 78 goals in a 38 game season. Our xG last season was 58, 57 in Mou's 1st season, 45 in LVG's philosophy season and 54 in LVG's 1st season. It would have translated to 63 goals had Mou remained our manager.
The 2nd question would be how does this compare with other sides:
Spurs in 34 games this season have xG of 57.79, which translates to a 64 goal season, Pool have 70.26 which translates to 78.5 goal season (same as ours), City is the only team which has xG better than ours!
The decision will be unanimous. To hire OGS as our full time manager. It would be stupid not to because if the manager they hire instead of OGS doesnt work out, the board will come under incredible pressure.
Look, I'm not one of those who'll go on preaching to back the manager. Hell, I wanted Poch as our manager but one needs to acknowledge that we've come a long way since Jose's sacking and in the right direction. We have a positive game plan going into every game and while it will take time and players of different ilk to take it to perfection, it's a big step in helping us reach our goals. Atleast, give him a pre-season and a transfer window before dismissing him as yet another failed manager signing